Good patterns
- Combines damage and durability in committed skirmishes or extended exchanges.
- Creates space through durability, control or a reliable front-line threat.
Game patch 26.20Data Dragon 16.20.1
Reference patch 16.20.1
Zac
the Secret Weapon
Zac is a durable champion who creates space through control, protection or a committed front line. This overview keeps the explanation practical and leaves patch-sensitive numbers to Riot's structured data and the current in-game tooltip.
Usual roleJungle◆ClassTank · Fighter
8DifficultyHigh · 8/10
◎Basic attacksMeleeMelee basic attacks · 175 range.
◈Damage profileMostly magic damageMost normal kit pressure is magic. Magic resistance may help, but control, penetration and true damage still matter.
#Reference patch16.20.1
Strengths and limits
What Zac does well, and what can go wrong
These are kit-level patterns, not a promise that every lane or matchup plays the same way.
Limits to respect
- Can be worn down or controlled before reaching the range where the kit is strongest.
- Durability does not make an unsupported engage safe or guarantee enough damage to finish a target.
- Basic attacks require close access, so enemy range, slows and displacement can deny a clean trade.
Riot ally tips
Use these while learning the championPicking up goo chunks is very important to staying alive.
When Cell Division is ready, try to die in a position that makes it difficult for the enemy team to kill your bloblets.
Charging Elastic Slingshot from the fog of war will give opponents less time to react.
Riot opponent tips
What an opponent is told to watch forZac heals from the goo that separates from him. You can crush the goo pieces by stepping on them.
Kill all of Zac's bloblets when he splits apart to stop him from reforming.
Silences, stuns, roots and knockups will all interrupt Zac when he is charging Elastic Slingshot.
Practical champion reading
How to read Zac in a real fight
Use these patterns to ask better questions before choosing an item, target or commitment. They describe the kit, not a guaranteed result.
Primarily magic pressure
Magic resistance can reduce the broad spell profile, but positioning and cooldown tracking still decide whether the important abilities connect.
Track the complete ability cycle
Do not judge the champion from one button. Watch which setup, payoff and escape tools are available before choosing a trade or commitment.
Needs close access for basic attacks
Range, slows, displacement and terrain can deny the clean contact this champion wants. Plan the route in as carefully as the damage after arrival.
Create space and absorb attention
The kit is usually most valuable when it controls an entrance, protects a carry or begins a fight allies can actually reach. Durability does not make an isolated engage safe.
Identify the exact movement restriction
Tenacity can shorten only eligible control. Displacements, airborne effects and repeated slows need their own positioning, blocking or movement answer.
Check whether recovery changes the fight
Anti-heal or anti-shielding is situational. Buy it only when the effect is materially protecting targets and your champion can apply the answer reliably.
Cooldowns are the visible limiter
This champion does not use a normal mana-style bar. Track important cooldowns, charges or champion-specific states instead of waiting for an empty resource bar.
Defensive item reference
What can help against Zac?
Start with the threat that is actually affecting the match. These are conditional comparisons, not an automatic counter build.
DEFENSIVE BOOTS
Mercury's Treads usually fit better
Magic resistance addresses the broad damage profile, while Tenacity can shorten reducible control.
Choose Plated Steelcaps instead only when physical basic attacks from this champion or the rest of the team are the larger repeated threat.Normal Draft and Ranked role map
Where Zac fits on Summoner's Rift
Each lane is assessed separately. Open a role to reach its queue-specific build and matchup preparation.
TopSecondary
Historical reference. Recommendation review pending. Zac has a secondary role listed in this historical reference. It is less common than the primary roles, but it has a recognisable role-specific plan.
JunglePrimary role
Historical reference. Recommendation review pending. Zac has an established clear and map plan that can function without lane income while contesting camps and objectives.
MidUnestablished route
Historical reference. Recommendation review pending. Zac is normally played Jungle and does not currently have a reviewed Mid route. Mid usually needs solo-lane safety plus wave control, roaming or reliable burst pressure. Treat this as a deliberate experiment, not a standard recommendation.
BotUnestablished route
Historical reference. Recommendation review pending. Zac is normally played Jungle and does not currently have a reviewed Bot route. Bot usually needs dependable duo-lane scaling and sustained damage with shared early pressure. Treat this as a deliberate experiment, not a standard recommendation.
SupportUnestablished route
Historical reference. Recommendation review pending. Zac is normally played Jungle and does not currently have a reviewed Support route. Support usually needs useful engage, peel or utility while operating on low gold income. Treat this as a deliberate experiment, not a standard recommendation.
Situational AP purchase
When should you buy anti-heal?
Buy healing reduction when enemy healing or regeneration is deciding fights and you can keep damaging the relevant target. Grievous Wounds reduces healing; it does not reduce shields, magic damage or crowd control.
Start with the component
Oblivion Orb can provide healing reduction without immediately paying for a completed Morellonomicon. Fit the component around your core damage, mana and survival needs; check the current queue's item tooltip.
Finish when it fits the fight
Complete Morellonomicon when its stats and slot efficiency suit your build. Do not treat it as a mandatory first item just because your champion deals magic damage.
Coordinate coverage
Multiple Grievous Wounds sources do not add their percentages together. Another reliable applier may cover the same target, but you may still need your own source for a separate fight or target.
Repeated spell damage and damage over time can maintain coverage more reliably than a single hit. Match the purchase to your actual spell access, enemy sustain and the teammates who can apply the debuff.
Will the fight last long enough?
If you die before dealing damage, you apply no healing reduction. If your target dies before healing, there is little healing to prevent. The debuff applies on qualifying damage immediately; it does not need to build up. It remains briefly after your last hit, so teammates can benefit even after you disengage.
Only healing during the active debuff counts. For example, 40% reduction prevents 80 of a 200-point heal, or 400 of a 1,000-point heal, before other modifiers. Compare that with the damage, penetration or survival you delayed; neither example guarantees a kill. Healing after the debuff expires is unaffected.
See the Oblivion Orb and Morellonomicon references for current effects and queue availability. These are situational decisions, not a measured best-build claim.
Kit reference
Zac abilities
Ability names, descriptions and numeric fields come from Riot Data Dragon. Practical reads are independently written; the current in-game tooltip remains authoritative.
Abilities Data Dragon 16.20.1Cooldown / Cost / Range Data Dragon 16.20.1
P
Passive
Cell Division
What it doesEach time Zac hits an enemy with an ability, he sheds a chunk of himself that can be reabsorbed to restore Health. Upon taking fatal damage, Zac splits into 4 bloblets that attempt to recombine. If any bloblets remain, he will revive with an amount of Health depending on the Health of the surviving bloblets. Each bloblet has a percentage of Zac's maximum Health, Armor and Magic Resistance. This ability has a 5 minute cooldown.
Practical readCell Division is an automatic part of the kit involving damage. Track when its condition is active instead of treating every fight the same way.
Maximum-health interaction
This effect references a maximum-health value. Check whether the current tooltip uses the caster's or the target's health before comparing damage or protection.
Q
Q ability
Stretching Strikes
What it doesZac stretches an arm, grabbing an enemy. Attacking a different enemy will cause him to throw both targets towards each other.
Practical readStretching Strikes is part of Zac's Q pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
Cooldown14/12.5/11/9.5/8 secListed range800 units
W
W ability
Unstable Matter
What it doesZac explodes outward towards nearby enemies, dealing a percentage of their maximum health as magic damage.
Practical readUnstable Matter contributes damage. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
Cooldown5 secListed range350 units
Maximum-health interaction
This effect references a maximum-health value. Check whether the current tooltip uses the caster's or the target's health before comparing damage or protection.
E
E ability
Elastic Slingshot
What it doesZac attaches his arms to the ground and stretches back, launching himself forward.
Practical readElastic Slingshot is part of Zac's E pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
Cooldown21/18/15/12/9 secListed range300 units
R
Ultimate
Let's Bounce!
What it doesZac bounces four times, knocking up enemies hit and slowing them.
Practical readLet's Bounce! contributes a slowing effect. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
Cooldown120/105/90 secListed range300 units
Levels 1–18
Zac · Health / Ability resource · Abilities
Base values exclude items, runes, temporary buffs and mode-specific modifiers. Cooldowns are the listed base cooldown before ability haste.
Cooldown Data Dragon 16.20.1
Basic abilityStretching Strikes
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Rank 114 secRank 212.5 secRank 311 secRank 49.5 secRank 58 sec
Basic abilityUnstable Matter
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
All ranks5 sec
Basic abilityElastic Slingshot
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Rank 121 secRank 218 secRank 315 secRank 412 secRank 59 sec
UltimateLet's Bounce!
First rank becomes available at level 6; later ranks normally become available at levels 11 and 16.
Rank 1120 secRank 2105 secRank 390 sec
Open every levelHealth and ability resource from level 1 to 18
| Level | Health | Ability resource | Ability milestone |
|---|---|---|---|
| 1 | 685 | No mana pool | Choose the first basic ability |
| 2 | 763 | No mana pool | Add another basic ability or rank |
| 3 | 846 | No mana pool | Add another basic ability or rank |
| 4 | 932 | No mana pool | Spend one ability point |
| 5 | 1,022 | No mana pool | Spend one ability point |
| 6 | 1,116 | No mana pool | First ultimate rank normally available |
| 7 | 1,213 | No mana pool | Spend one ability point |
| 8 | 1,314 | No mana pool | Spend one ability point |
| 9 | 1,420 | No mana pool | Spend one ability point |
| 10 | 1,529 | No mana pool | Spend one ability point |
| 11 | 1,641 | No mana pool | Second ultimate rank normally available |
| 12 | 1,758 | No mana pool | Spend one ability point |
| 13 | 1,879 | No mana pool | Spend one ability point |
| 14 | 2,003 | No mana pool | Spend one ability point |
| 15 | 2,131 | No mana pool | Spend one ability point |
| 16 | 2,263 | No mana pool | Final ultimate rank normally available |
| 17 | 2,398 | No mana pool | Spend one ability point |
| 18 | 2,538 | No mana pool | Spend one ability point |
Choose the next question
Turn the profile into a pre-game plan
Choose a queue-aware build, compare a lane opponent, or return to the full champion library.